Automatic oiling device



June 25, 1929. G. R. SHERMAN ET AL 1,718,667

AUTOMATIC OILING DEVICE Filed July 7, 1927 2 Sheets-Sheet l J V[n'ventms G. 7?. Sizer/War,

' /7. R Ima e;

Attorney June 25, 1929. REHERMAN E r AL Y 718,667

AUTOMATIC 01mm DEVICE Filed July ,v 192'? 2 Sheets-sheaf, 2

4- f J0" J7 .73 as .yy

30 28 fit $.14.

Inventor;

G. 1 677007077 4 R lifiz lyar;

Patented June 25, 1929.

UNITED STATES PATENT OFFICE.

GEORGE ROBERT SHERMAN AND ANTHONY R. LI'ISINGER, F BALTIMORE, MARYLAND.

AUTOMATIC OILING DEVICE.

Application filed July 7, 1927. Serial No. 204,025.

This invention relates to new and useful improvements in oiling devicesand aims to provide a device that is primarily, though not specificallyadapted for use in the oiling of overhead shaftings, bearings, pulleys,etc. and this without requiring the operator to employ a step ladder orother elevating means. Furthermore the invention is so constructed thatwhen the discharge end of the oil spout is engaged with the point to beoiled and a pull applied to the device the oil will be caused toautomatically flow through the spout and thus lubricate the bearing,pulley, or other element being lubricated. By reason of such a structurethere will be no lia bility of the operator slipping in a directiontoward the shafting or belt which frequently results in injury to theworkman.

The invention further aims to provide a device of this character that isrelatively of simple construction and cheap to manufacture, but that isyet highly eificient in operation.

In the drawing wherein like reference characters indicate correspondingparts throughout the several views:

Figure 1 is a view of the oiling device, the lubricant container beingdisposed in vertical section.

Figure 2 is a horizontal section taken substantially upon the line 22 ofFigure 1 and looking downwardly in the direction of the arrows.

Figure 3 is an enlarged fragmentary section disclosing more clearly theoil inlet and discharge mechanism of the invention.

Figure 4 is a transverse section through the outlet pipe of the devicewhich is associated with the discharge snout. said pipe being equippedwith a normally closed check valve, and

Figure 5 is a fragmentary section through the lubricant container formore clearly disclosing a means whereby the lid of the container isdetachably secured thereon.

Now having particular reference to the drawings, our novel device consi.of a suitable lubricant container 5 open at its upper end and providedwith a slip-type removable lid 6 that may be, and preferably is readilydetachably secured to the container by reason of one or more springfasteners 7, see Figure 5. The lid of the container is provided with aninlet 8 from which depends a sleeve 9 arranged over the lower end ofwhich is i filter screen 10. The inlet opening is threaded for receivinga closure plug 11, see Figure 1.

Furthermore, tightly arranged within an opening of this lid 1s aninternally threaded collar 12 within the lower end of which is threadedthe upper closed end of a depending sleeve 13 within the lower end ofwhich is threaded a cylinder 14 coextensive with said sleeve. Slidablethrough the closed end of the sleeve 13 is a plunger-15 which plunger isalso slidable through a bore in the plug 16 threaded within the upperend of the lid collar 12.

Secured to the lower end of the plunger 15 is a circular head 17 toopposed points of which are depending and pivotally connected links18-18. Opposed points of the sleeve 13 are formed with longitudinallyextending slots 19-19 to permit the inner yoked end 20 of a rockinglever 21 to be pivoted to the lower ends ofsaid links, see F igures 1and 3. This lever 21 is pivoted intermediate its ends as at 22 to ahanger 23 that depends from the container lid 6.

Arranged upon the lower end of the plunger 15 that extends to thecylinder 14 is a suitable piston 24 mounted for reciprocation withinsaid cylinder. Arranged upon the plunger directly above the piston 24 isa plate 25 that has rest upon the upper end of the cylinder and thatsupports the lower end of an expansible coil spring 26 which springsurrounds the plunger 15 between the member 25 and the head 17, saidspring serving to maintain the plunger 15 and piston 24 raised.

Threaded upon the lower end of the cylinder 14 is a key fitting 27, thevertical portion of which is coextensive with the cylinder 14 and sleeve13. The lower end of the vertical portion of said fitting is formedinternally with a circular flange to provide a valve seat 28 while theinner end of said vertical portion of the fitting is threaded forreceiving a plug 29 from which depends a pin 30 slidable upon which is avalve 31 for rest upon the seat provided-by the flange 28, an expansiblecoil spring 32 siiirrounding said pin between the plug 29 and said valveas clearly disclosed in Figure 3.

The horizontal portion of this fitting 27 COHSU'W'ftGd substantiallyidentical with the vertical portion thereof and in such a manner as toprovide at its inner end a valve seat 33, the outer end thereof beingthreaded for receiving a plug 34 that also carries an inwardlyprojecting pin 35 upon the inner end of which is slidable a valve 36 forengagement with the seat 33. In this instance also an expansible coilspring 37 surrounds the pin between the valve 86 and plug 3%. As clearlydisclosed 1n Figure 1 the outer ends of the plugs 29 and'34l areequipped with angular heads 29 and 34' to permit of the turning of thesame into and out of the fitting. Furthermore the periphery of each plugis formed With notches as disclosed in Figure 4 to permit lubricant tobe passed therethrough.

Threaded upon the end of the horizontal portion of the fitting 27 is anelbow fitting 37, the outer end of which extends upwardly and to whichis attachedthe lower end of an elongated nozzle pipe 38 that extendsthrough an opening in the lid of the container and that is provided atits upper end with a ver tically slidable goose neck 39. Pivoted to theouter end of the rocking lever 21. is the lower end of a verticallyextending rod 40 that has sliding engagement with an opening in thecontainer lid 6 and thatis pivotally attached at its upper end toa'finger' 41 secured to the lower end of the goose neck 89.

Obviously the container, 5 is to be charged with lubricant and when thedischarge end,

neck 39. On'the down stroke of the piston 24 the valve 31 will bepositively closed, while the pressure of the fluid against the valve 36will cause the opening of the valve to permit the fluid to pass thereby.As soon as the pull is released the piston 2 L will be returned by thespring 26 and'on its upstroke the lubricant will be drawn into thecylinder let by reason of'the valve 31 opening, the suction of thepiston closing the valve 36.

In order that the lubricant may be discharged by hand, theprojecting'end otthe plunger 15 is equipped with a handle 42.

It will thus be seen that we have provided a highly novel,simpleand'etficiently operatfrom the container, a nozzle slidahle on thespent, a pump device associated with the container, a rocker arm, aconnection between the nozzle and one end of? the rocker arm, the

opposite end of the arm being connected to the pump so that the movementof the nozzle on the spout will transmit motion to the pump for forcingliquid from the container through the snout.

2. in a lubricati device of the character described, a container, aspout projecting from'the container, a pump device operable to forcefluid from the container through the spout, a goose neck shaped nozzleslid able on the outer end of the spout, a rocker arm on the container,a connection between the inner end of the nozzle and one end ol therocker arm, the opposite end of the arm being operably connected withthe pump device, so that an inward movement ot the nozzle will actuatethe pump to "force iluid vfrom 'he container through the spout.

3. In a lubricating device of the character described, a container, aspout projecting from the container, a pump barrel mounted on saidcontainer, a plunger operable within the barrel, means for retainingtheplunger 1n retracted position, a nozzle slidable on the spout, a rockerarm mounted on the container.

and a connection between the said nozzle and one end of the arm, theopposite end 'ol 'tho arm being associated with the plunger so that aninward movement oi the nozzle will actuate the plunger to dischargefluid from the container through said spout.

In testimony whereot we ailix our ign:1-- tures.

GEORGE ROBERT Sl lERh'l l KN. ANTHONY R. LITSINGER.

